/Engine/Source/Runtime/GeometryCore/Public/MeshQueries.h
Compute various statistics on distances between two meshes
template<typename MeshSpatialType> static void MeshDistanceStatistics ( const TriangleMeshType & MeshA, const MeshSpatialType & SpatialB, const TriangleMeshType * MeshB, const MeshSpatialType * SpatialA, bool bSymmetric, double & MaxDistance, double & MinDistance, double & AverageDistance, double & RootMeanSqrDeviation )